peters



(Model.) 2 Sheets-Sheen 'L J. W. POST. Lock.

No. 236,660. Patented Ja'n. 11,1861.

(Model.) 2 Sheets-Sheet 2.

J. W'. POST.- Lock.

No. 236,660. Patented Jam-11, |881.

7UNTTan STATES BATTNT Ormea..

JOHN W. POST, OF NEV YORK, N. Y.

LOCK.

SPECIFICATION forming part of Letters Patent No. 286,660, dated January 11, 1881.

Application flied may 24,1880. (Model.)

To all whom it may concern:

Be it known that I, JOHN W. POST, a citizen ofthe United States, residing at New York, in the county ot' New York and State of New York, have invented certain new and useful Improvements in Mortise-Locks; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, ret'- erence being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part ot' this specification.

This invention relates to certain improvements in locks of that class known as mortise-loc-ks,77 and has for its object to produce a simple and cheap device which can be readily and easily secured to a door, drawer, or box without the use of screws; and it consists in the novel combination and arrangement ot' parts more fully hereinafter specified. This object I attain by the mechanism illustrated in the accompanying drawings, in which- Figure l represents a perspective view of my improved device as applied to a door; Fig. 2, a horizontal sectional view, showing the cylinders placed in their relative positions; Fig. 3, a vertical sectional view; Fig. 4, a perspective view of the cylinder carrying the bolt and tumblers; Fig. 5, a perspective view of the bolt and tumblers; Fig. 6, a perspective view of the transverse cylinder. Fig. 7 represents a vertical section view of a moditication of the bolt and tumbler of my inlproved device, and Fig. S a view of the key to the first-mentioned device.

The letter A indicates a door or drawer; B, the transverse cylinder, and O the bolt and tumbler carrying cylinder. The tra-nsverse cylinder is recessed for the reception of the bolt and tumbler carrying cylinder, and is provided with a key-hole in each face or end thereof. The bolt and tumbler carrying cylinder is provided at the top, a short distance from the inner end, with ahorizontal slot, D, which is adapted to receive a pin, E, which passes through corresponding holes F at the top of cylinder B after the cylinder O has been tted in proper position in the recess in said cylinder B.

In securing the lock to the door or drawer, a hole, G, is bored through the surface ot' the door or drawer at a proper distance from the edge thereof, and a hole, H, bored in the edge of the door or drawer, extending a short distance beyond the hole G. The transverse cylinder is then placed in the aperture G, the recessed part being upward, and pushed in so that the faces of said cylinder are fiush with the surfaces of the door or drawer. The bolt and tumbler carrying cylinderis then inserted in the aperture H until the slot D is on a line with the holes F in the cylinder B, when the pin E is inserted, and the lock is securely attached to the door or drawer.

The cylinder O is also provided at its under side with a longitudinal slot, l, whereby access is had to the working parts of the device.

J indicates the bolt, which is provided with one or more tumblers, K, pivoted and working in a longitudinal slot, L, said tumbler or tumblers being operated by a U shaped spring, M, one end of which is secured in a hole, N, in the inner end of the slot L ot' the bolt J, and the other end abuts against a shoulder, O, on the tumbler K; or it may be secured in a hole or slot made in said tumbler.

Passing horizontally through the bolt and tumbler carrying cylinder, near its inner end, is a pin, P, which is for the purpose of holding the bolt J at the various positionsto which it may be thrown by the keyspecially adapted for the device acting upon the wards in the tumblers. As the turn of the key throws the boltbackward or forward the tumbler is caused by the spring M to drop down and enga-ge said pin, and thus securely hold the boltin position.

In the moditication shown in Fig. 7 the bolt J is provided with a rack on its under side and adapted to be engaged by a pinion, Q, operated by a suitable key. The spindle on which the pinion is formed can be turned indettnitely and will not affect the bolt.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

IOO

io transverse opening` in the bolt and tumbler carrying cylinder, whereby the said cylinders are secured together and locked in place in the door, substantially as specified.

ln testimony whereof I affix my signature in presence of two witnesses.

JOHN W. POST.

Vitnesses:

E. D. EDGERTON, R. H. ROOT. 

